The Collaborative International Dictionary of English v.0.48:
Calvinistic \Cal`vin*is"tic\, Calvinistical \Cal`vin*is"tic*al\, a. Of or pertaining to Calvin, or Calvinism; following Calvin; accepting or Teaching Calvinism. "Calvinistic training." --Lowell. [1913 Webster]WordNet (r) 3.0 (2006):
Calvinistic adj 1: of or relating to or characteristic of Calvinism or its adherents [syn: Calvinist, Calvinistic, Calvinistical]